diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-01-22 21:14:05 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-01-22 21:39:43 +0100 |
| commit | d9d9fd9446eb722fd288f56d905f0dfde661af8f (patch) | |
| tree | 6bd74f75d38e84bd24bdf2902f93938c361c2ae2 /libavcodec/h264dec.c | |
| parent | f1214ad5d9ece179955f9326f3e33e0049660134 (diff) | |
avcodec/error_resilience: Optimize motion recovery code by using blcok lists
This makes the code 7 times faster with the testcase from libfuzzer
and should reduce the amount of timeouts we hit in automated fuzzing.
(for example 438/fuzz-2-ffmpeg_VIDEO_AV_CODEC_ID_RV40_fuzzer)
The code is also faster with more realistic input though the difference
is small here as that is far from the worst cases the fuzzers pick out
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/h264dec.c')
| -rw-r--r-- | libavcodec/h264dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c index 665d3e46a5..4ecaec267c 100644 --- a/libavcodec/h264dec.c +++ b/libavcodec/h264dec.c @@ -285,7 +285,7 @@ int ff_h264_slice_context_init(H264Context *h, H264SliceContext *sl) mb_array_size * sizeof(uint8_t), fail); FF_ALLOC_OR_GOTO(h->avctx, er->er_temp_buffer, - h->mb_height * h->mb_stride, fail); + h->mb_height * h->mb_stride * (4*sizeof(int) + 1), fail); FF_ALLOCZ_OR_GOTO(h->avctx, sl->dc_val_base, yc_size * sizeof(int16_t), fail); |